LTC1258-4.1

Features:

 200mV Max Dropout at 10mA Output Current
 4A Typical Quiescent Current
 0.15% Max Initial Accuracy
 No Output Capacitor Required
 Output Sources 10mA, Sinks 2mA
 40ppm/°C Max Drift Over Commercial Temp Range
 Load Regulation Over Temperature:
    0.1mV/mA, Source up to 10mA
    1.75mV/mA, Sink up to 2mA
 3.2V to 12.6V Supply Voltage Range (LTC1258-3)
 4.3V to 12.6V Supply Voltage Range (LTC1258-4.1)


Application

Battery-Powered Systems
Hand-Held Instruments
Precision Power Supply
A/D and D/A Converters


Pinout




Specifications

Supply Voltage ........................................................ 13V
Input Voltages ........................................................ 0.3V to 13V
Output Voltages ..................................................... 0.3V to 13V
Output Short Circuit Duration ................................. Indefinite
Operating Temperature Range ............................... 0°C to 70°C
Storage Temperature Range (Note 2) .................... 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................... 300°C


Description

The LTC^®1258-3/LTC1258-4.1 are micropower bandgap references that combine high accuracy and low drift with very low supply current and small package size. The combination of ultralow quiescent current and low dropout voltage of only 200mV max makes them ideal for batterypowered equipment.

These references uses curvature compensation to obtain low temperature coefficient and trimmed thin-film resistors to achieve high output accuracy. These references can supply up to 10mA and sink up to 2mA, making them ideal for precision regulator applications. The LTC1258-3/ LTC1258-4.1 are stable without an output bypass capacitor, but are also stable with capacitance up to 1F. This feature is important in critical applications where PC board space is a premium and fast settling is demanded.

Series references provide power dissipation advantages over shunt references. In addition to supply current, shunt references must also idle the entire load current to operate.

The LTC1258-3/LTC1258-4.1 are available in the 8-pin SO package.